Token

Contract Source Code (Solidity)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

Outline

library SafeMath    - function mul(uint a, uint b)    - function div(uint a, uint b)    - function sub(uint a, uint b)    - function add(uint a, uint b)    - function max64(uint64 a, uint64 b)    - function min64(uint64 a, uint64 b)    - function max256(uint256 a, uint256 b)    - function min256(uint256 a, uint256 b)    - function assert(bool assertion)  contract ERC20Basic    - function balanceOf(address who)    - function transfer(address to, uint va ...  contract ERC20 is ERC20Basic    - function allowance(address owner, add ...    - function transferFrom(address from, a ...    - function approve(address spender, uin ...  contract BasicToken is ERC20Basic    - function transfer(address _to, uint _ ...    - function balanceOf(address _owner)  contract StandardToken is BasicTok ...    - function transferFrom(address _from, ...    - function approve(address _spender, ui ...    - function allowance(address _owner, ad ...  contract MetalToken is StandardTok ... *    - function MetalToken()

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

/**
 *Submitted for verification at Etherscan.io on 2017-06-29
*/

pragma solidity ^0.4.11;

/**
 * Math operations with safety checks
 */
library SafeMath {
  function mul(uint a, uint b) internal returns (uint) {
    uint c = a * b;
    assert(a == 0 || c / a == b);
    return c;
  }

  function div(uint a, uint b) internal returns (uint) {
    // assert(b > 0); // Solidity automatically throws when dividing by 0
    uint c = a / b;
    // assert(a == b * c + a % b); // There is no case in which this doesn't hold
    return c;
  }

  function sub(uint a, uint b) internal returns (uint) {
    assert(b <= a);
    return a - b;
  }

  function add(uint a, uint b) internal returns (uint) {
    uint c = a + b;
    assert(c >= a);
    return c;
  }

  function max64(uint64 a, uint64 b) internal constant returns (uint64) {
    return a >= b ? a : b;
  }

  function min64(uint64 a, uint64 b) internal constant returns (uint64) {
    return a < b ? a : b;
  }

  function max256(uint256 a, uint256 b) internal constant returns (uint256) {
    return a >= b ? a : b;
  }

  function min256(uint256 a, uint256 b) internal constant returns (uint256) {
    return a < b ? a : b;
  }

  function assert(bool assertion) internal {
    if (!assertion) {
      throw;
    }
  }
}

/**
 * @title ERC20Basic
 * @dev Simpler version of ERC20 interface
 * @dev see https://github.com/ethereum/EIPs/issues/20
 */
contract ERC20Basic {
  uint public totalSupply;
  function balanceOf(address who) constant returns (uint);
  function transfer(address to, uint value);
  event Transfer(address indexed from, address indexed to, uint value);
}

/**
 * @title ERC20 interface
 * @dev see https://github.com/ethereum/EIPs/issues/20
 */
contract ERC20 is ERC20Basic {
  function allowance(address owner, address spender) constant returns (uint);
  function transferFrom(address from, address to, uint value);
  function approve(address spender, uint value);
  event Approval(address indexed owner, address indexed spender, uint value);
}

/**
 * @title Basic token
 * @dev Basic version of StandardToken, with no allowances.
 */
contract BasicToken is ERC20Basic {
  using SafeMath for uint;

  mapping(address => uint) balances;

  /**
   * @dev Fix for the ERC20 short address attack.
   */
  modifier onlyPayloadSize(uint size) {
     if(msg.data.length < size + 4) {
       throw;
     }
     _;
  }

  /**
  * @dev transfer token for a specified address
  * @param _to The address to transfer to.
  * @param _value The amount to be transferred.
  */
  function transfer(address _to, uint _value) onlyPayloadSize(2 * 32) {
    balances[msg.sender] = balances[msg.sender].sub(_value);
    balances[_to] = balances[_to].add(_value);
    Transfer(msg.sender, _to, _value);
  }

  /**
  * @dev Gets the balance of the specified address.
  * @param _owner The address to query the the balance of.
  * @return An uint representing the amount owned by the passed address.
  */
  function balanceOf(address _owner) constant returns (uint balance) {
    return balances[_owner];
  }

}

/**
 * @title Standard ERC20 token
 *
 * @dev Implemantation of the basic standart token.
 * @dev https://github.com/ethereum/EIPs/issues/20
 * @dev Based on code by FirstBlood: https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol
 */
contract StandardToken is BasicToken, ERC20 {

  mapping (address => mapping (address => uint)) allowed;


  /**
   * @dev Transfer tokens from one address to another
   * @param _from address The address which you want to send tokens from
   * @param _to address The address which you want to transfer to
   * @param _value uint the amout of tokens to be transfered
   */
  function transferFrom(address _from, address _to, uint _value) onlyPayloadSize(3 * 32) {
    var _allowance = allowed[_from][msg.sender];

    // Check is not needed because sub(_allowance, _value) will already throw if this condition is not met
    // if (_value > _allowance) throw;

    balances[_to] = balances[_to].add(_value);
    balances[_from] = balances[_from].sub(_value);
    allowed[_from][msg.sender] = _allowance.sub(_value);
    Transfer(_from, _to, _value);
  }

  /**
   * @dev Aprove the passed address to spend the specified amount of tokens on beahlf of msg.sender.
   * @param _spender The address which will spend the funds.
   * @param _value The amount of tokens to be spent.
   */
  function approve(address _spender, uint _value) {

    // To change the approve amount you first have to reduce the addresses`
    //  allowance to zero by calling `approve(_spender, 0)` if it is not
    //  already 0 to mitigate the race condition described here:
    //  https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
    if ((_value != 0) && (allowed[msg.sender][_spender] != 0)) throw;

    allowed[msg.sender][_spender] = _value;
    Approval(msg.sender, _spender, _value);
  }

  /**
   * @dev Function to check the amount of tokens than an owner allowed to a spender.
   * @param _owner address The address which owns the funds.
   * @param _spender address The address which will spend the funds.
   * @return A uint specifing the amount of tokens still avaible for the spender.
   */
  function allowance(address _owner, address _spender) constant returns (uint remaining) {
    return allowed[_owner][_spender];
  }

}

/**
 * @title Metal ERC20 token
 *
 * @dev Implemantation of the metal token.
 */
contract MetalToken is StandardToken {

    string public name = "Metal";
    string public symbol = "MTL";
    uint public decimals = 8;
    uint public INITIAL_SUPPLY = 6658888800000000; // Initial supply is 66,588,888 MTL

    function MetalToken() {
        totalSupply = INITIAL_SUPPLY;
        balances[msg.sender] = INITIAL_SUPPLY;
    }
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"constant":true,"inputs":[],"name":"name","outputs":[{"name":"","type":"string"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_value","type":"uint256"}],"name":"approve","outputs":[],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_from","type":"address"},{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transferFrom","outputs":[],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"INITIAL_SUPPLY","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"name":"","type":"uint256"}],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"}],"name":"balanceOf","outputs":[{"name":"balance","type":"uint256"}],"payable":false,"type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"name":"","type":"string"}],"payable":false,"type":"function"},{"constant":false,"inputs":[{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transfer","outputs":[],"payable":false,"type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"},{"name":"_spender","type":"address"}],"name":"allowance","outputs":[{"name":"remaining","type":"uint256"}],"payable":false,"type":"function"},{"inputs":[],"payable":false,"type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"name":"owner","type":"address"},{"indexed":true,"name":"spender","type":"address"},{"indexed":false,"name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"from","type":"address"},{"indexed":true,"name":"to","type":"address"},{"indexed":false,"name":"value","type":"uint256"}],"name":"Transfer","type":"event"}]

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

bzzr://92516707e9aa16eec89985eb257944dfd7e5f4503f9f5c40744ce12ffebd731b